Electrical condenser.



R. H. MANSON. ELECTRICAL CONDENSER. APPLICATION FILED MAY 29, 1907.

Patented June 21, 1910.

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UNITED STATES PATENT OFFICE;

RAYHZj MANso F ELYRIA, 01110, Ass'reuon 1 0 THE DEAN ELECTRIC COMPANY,or ELYRIA, OHIO, A CORPORATION or onto.

ELECTRICAL CONDENSER,

To, all whom it concern:

Be itknown that I, RAY H. MANSON, a.

.; citizen of the United States, residing at Elyria, in the county ofLorain and Stateof .5 Ohio, have invented certain'new and usefulImprovements in Electrical Condensers, of 'wh-lch the followingis-a'specification, reference being had therein to the accompanyingdrawing.

My invention relates to electrical conensers'," more particularly tothose con- .densers"that are used in telephone exchanges land-itconsists in the construction, combinations, and arrangements hereindescribed and claimed. ,v

,An object'of my invention is to provide a device so constructed that itmay be readily secured on a; mounting plate without the use of specialinsulating strips or bushings, and

one in which the terminals can be inspected I withoutope ning thecondenser can-.

A further object of my inventionis to provide a, cover for the condenserwhich .rnay be attached securely .to the condenser can and which can bereadily removed therefrom without'any danger of the metal of the cancoming in contact with the mounting plate." I

'A further object of my invention is to so arrange the parts that whenthe condenser is used places not requiring a mounting plate there willbe no projecting bolts --or mountii1g screws to, interfere with theassemblingof the adjacent condenser or with the'ihspection and repair ofthe terminals. [I ameware oft-he inethod of mounting .the condenser on atelephone switchboard .lsothat'the mounting-means, consisting ofthreaded bolts, constitute also the condenser terminals to which thenecessary conducting wires are soldered.

My present invention is designed to obviate certain objections'sometimesfound to the use of the securing bolts as condenser terminals. Incertain cases, when the latter method of mounting the condenser is em--ployed, care must he'exercise'd in soldering the conducting wires to theterminals so .that'noportion of the solder shall run back into thethreaded portion of the terminal and thus interfere with the readydismounting of the condenser when it is desired to do so.

Specification of Letters lta'tent. Patented: J une 21, 1910. vApplication filed May 29, 1907. Serial 1\l'o. 376 ,4= 22.

My invention is illustrated in the accom panying drawings in'whichFigure .1 is a. sectional view through .a portion of the mounting stripand the (20115 (lensen- Fig. 2 is-asimilar view showing a modificationof the mounting means. 'Fig.

3 is a detail view showing the construction of one of the condenserterminals.

Referring to the drawings and particular-l 5 to Fig. 1, eacheondenser Cis-provided wit a wooden cover 0 having a shoulder a at the ends thereofagainst \\-'l1ieh"tl1 e metal sides a of ,the condenser can: are'adaptedto abut when the cover is in position;- =It., wil1 be seen that by'thisarrangement there is no danger of the metalpart of the cancoming.--

in contact with the metal plate. Retaining screws 0* secure. the coverto the can and at the same time constitute a-rneans for readily removingsaid cover, if for any reason-it should be desiredvto do so. I

Disposed in slots in the wooden cover 0 are the-round nuts 0" threadedto receive"- the retaining screws 0 which are adapted to pass throughthe openings in the metal strip afto firmly secure the condenserstosaidstrip. Pins 0 pass through the nuts 0 into the wooden cover a andserve the double purpose of keeping the nuts from turning also forpreventing a long screw from" and being forced into the condenserwinding.

I have shown in the figures a double condenser and terminals therefor.denser is made of two separate rolled type tin foil and paper condenserseach having its respective leaves brought out to its own pair ofterminals so that one can contains.

the two condensers. lhe terminals 0 are arranged in groups as shown andeach group rojects through an openingc in the mounts mg strip of. In mypreferred construction I orm these terminals of brass strips, saidstrips being slotted at one endthereof to provides short arm I? and along arm t. The short arm is bent downwardly and is adapted to be driveninto the wooden cover, while the long arnnis bent upwardly and isprovided ,with an opening. 5 for the rece -tion of the conducting wirewhich is so These terminals are further dered to it. secured to thewooden cover by means of the retainm screws 0 Openings s are also vprovide in the cover a through which the Such a con- 'leadin -in wiresof the condenser pass, the latter eing soldered to the terminals of.

The construction described above admits of several advantages. In thefirst place, if the-condenser is designed to be used in placesnot-.rcquirin a mounting plate, it

' will be seen that t ere are no projecting screws or bolts to interferewith the assem' bling. of the condensers -or with their readyinspection.Moreover, the method of se-' curing -the. terminals on 'the'outs'ide ofthe wooden-cover within the opening c in the mounting plates a dispenseswith the insulating strips and bushings which are usually necessary. Theterminals 0* are insulated from one another and from the metallicmounting plate a by air insulation only, the wooden cover 0 affording anefiicient insulating base 11 on which these condenser terminals 0 may hesecured.

In Fig. 2 the nuts-c and the screws of are replaced by the bolts 0 andthe nuts a. The

;p1ns c'serve the same purpose as those in Fi l. The terminals 0 arestormed similar y to those shown in Fig. 'l, but. instead of beingsecured on the outside of the cover 0 they aresecured on the inner sideof the cover a and pass through'openings in sald cover, being; groupedhowever in a similar manner to those shown in Ei 1.

The shorter arms t of'the termina s are per- forated'to receive the endsof the leading-in manufacture.

wi'res of the condenser to which they soldered.

are -These terminals are insulated from each other by the air insulationprovided by the opening 0 in the cover 6 The terminals a ar'ereadilyaccessible and as already shown, no insulating strips or bushings arenecessary thus rendering the device simple in construction andinexpensive to group of condenser terminals rojects I by providing airinsulation or the latter and screws operated from the outer Sidflp1 ametallic casing, a wooden to fit within said casing and of condenserterminals secured the outer Sldu of said cover and being connected withthe leadingdn wires of the-condenser, a perforated mounting striprovided with an opening through whic t he oup of condenser terminalsprojects, and means operated on the outerside of said mounting strip andextending throu h the perforations thereof to engage sai nutsto 'firmlyI secure said condenser to said mounting strip. a I

2. The combination of an electrical condenser having a metallic casing,a wooden cover adapted to fit within said casing andbeing provided witha the end of said casing, attaching said cover firmly tosaidcasing,securing nuts disposed in perforations in said cover, said nuts beingflush with the outer and inner surfaces of. said cover, a

shoulder engaging retaining screws for group of condenser terminalssecured to th'e Y outer side of saidcover and being connected with theleading-in wires of the con.- denser, a. perforated mounting 'stjri Yvided with'aniopenmg through wh c ythe said mounting strip and extendinthrough perforations in said strip and a apted to.

engage said nuts to securely fasten said con- I denser to .saidmountingstrip.

3. In an electrical-condenser, the combination of an insulated-covertherefor, a condenser terminal conslsting of a strip ,of

.metal split part way down from one .of'it's ends and each splitportion'bent in oppo-' site dlrectionsto positions at angles with,

the un'split end, one of said split parts'servmg as aterminal for anelectric circuit, the other split part serving as a terminal for-thecondenser, and mechanical means associated cover of the condenser. A

In testimon whereof I afiix my signature in presence 0 two witnesses."RAY H. MANSON-E"- Witnesses: i

S. J. Roisn'nrs, W. C. STRONG;

with the unsplit end attaching it tojthe

